Post-annealing Effects on Reaction Selectivity of Methanol Oxidation at Carbon-based Platinum Co-sputtered Electrocatalyst

• INOUE Mitsuhiro

  Hydrogen Isotope Research Center, University of Toyama

• NAGAI Kazuhiro

  Department of Materials Science and Technology, Faculty of Engineering, Nagaoka University of Technology

• SHIRONITA Sayoko

  Department of Materials Science and Technology, Faculty of Engineering, Nagaoka University of Technology

• ABE Takayuki

  Hydrogen Isotope Research Center, University of Toyama

• UMEDA Minoru

  Department of Materials Science and Technology, Faculty of Engineering, Nagaoka University of Technology

Abstract

A carbon with Pt (C–Pt) catalyst was prepared by a co-sputtering technique. Pt4f peaks of the prepared sample were observed at higher binding energies than those of a Pt sputtered sample. These Pt4f peaks shifted to the low binding energies with an increase in a post-annealing temperature, whereas the C1s peak position was unchanged. For the C–Pt catalyst as sputter-deposited, the methanol oxidation performance was enhanced by the presence of O₂. This O₂-enhnaced methanol oxidation was suppressed by the post-annealing at 160°C, while the reaction selectivity of the methanol oxidation was retained.

Journal

• Electrochemistry

  Electrochemistry 83 (5), 368-371, 2015

  The Electrochemical Society of Japan

Keywords

• Carbon-platinum Co-sputtered Anode Catalyst
• Direct Methanol Fuel Cells
• Methanol Oxidation Reaction Selectivity
• Post-annealing Effect

Details

• CRID: 1390282681474932608
• NII Article ID: 130005067096
• NII Book ID: AN00151637
• DOI: 10.5796/electrochemistry.83.368
• ISSN: 21862451
• ISSN: 13443542
• NDL BIB ID: 026362327
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I026362327
• Web Site: https://www.jstage.jst.go.jp/article/electrochemistry/83/5/83_14-E00131/_pdf
• Text Lang: en
• Data Source:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
  • KAKEN
• Abstract License Flag: Allowed